On Monday, the discount carrier filed an application with the Department of Transportation for authority to operate scheduled service to Mexico.

“Issuance of the authority requested by Allegiant would be in the public interest,” Allegiant counsel Aaron Goerlich wrote in the application. “Allegiant is well-known for its innovative, low-cost, traffic-stimulating service, which will enhance competition in the transborder leisure travel market.”

Allegiant has yet to reveal any details. The company said it would later announce routes and launch dates.

Allegiant already flies charter operations to Mexico. However, among the mainline U.S. carriers it’s the only one other than Hawaiian without Mexico scheduled service.